1 files changed, 0 insertions, 90 deletions
diff --git a/library/std/src/sys/hermit/condvar.rs b/library/std/src/sys/hermit/condvar.rs
deleted file mode 100644
index 22059ca0d..000000000
--- a/library/std/src/sys/hermit/condvar.rs
+++ /dev/null
@@ -1,90 +0,0 @@
-use crate::ffi::c_void;
-use crate::ptr;
-use crate::sync::atomic::{AtomicUsize, Ordering::SeqCst};
-use crate::sys::hermit::abi;
-use crate::sys::locks::Mutex;
-use crate::sys_common::lazy_box::{LazyBox, LazyInit};
-use crate::time::Duration;
-
-// The implementation is inspired by Andrew D. Birrell's paper
-// "Implementing Condition Variables with Semaphores"
-
-pub struct Condvar {
-    counter: AtomicUsize,
-    sem1: *const c_void,
-    sem2: *const c_void,
-}
-
-pub(crate) type MovableCondvar = LazyBox<Condvar>;
-
-impl LazyInit for Condvar {
-    fn init() -> Box<Self> {
-        Box::new(Self::new())
-    }
-}
-
-unsafe impl Send for Condvar {}
-unsafe impl Sync for Condvar {}
-
-impl Condvar {
-    pub fn new() -> Self {
-        let mut condvar =
-            Self { counter: AtomicUsize::new(0), sem1: ptr::null(), sem2: ptr::null() };
-        unsafe {
-            let _ = abi::sem_init(&mut condvar.sem1, 0);
-            let _ = abi::sem_init(&mut condvar.sem2, 0);
-        }
-        condvar
-    }
-
-    pub unsafe fn notify_one(&self) {
-        if self.counter.load(SeqCst) > 0 {
-            self.counter.fetch_sub(1, SeqCst);
-            abi::sem_post(self.sem1);
-            abi::sem_timedwait(self.sem2, 0);
-        }
-    }
-
-    pub unsafe fn notify_all(&self) {
-        let counter = self.counter.swap(0, SeqCst);
-        for _ in 0..counter {
-            abi::sem_post(self.sem1);
-        }
-        for _ in 0..counter {
-            abi::sem_timedwait(self.sem2, 0);
-        }
-    }
-
-    pub unsafe fn wait(&self, mutex: &Mutex) {
-        self.counter.fetch_add(1, SeqCst);
-        mutex.unlock();
-        abi::sem_timedwait(self.sem1, 0);
-        abi::sem_post(self.sem2);
-        mutex.lock();
-    }
-
-    pub unsafe fn wait_timeout(&self, mutex: &Mutex, dur: Duration) -> bool {
-        self.counter.fetch_add(1, SeqCst);
-        mutex.unlock();
-        let millis = dur.as_millis().min(u32::MAX as u128) as u32;
-
-        let res = if millis > 0 {
-            abi::sem_timedwait(self.sem1, millis)
-        } else {
-            abi::sem_trywait(self.sem1)
-        };
-
-        abi::sem_post(self.sem2);
-        mutex.lock();
-        res == 0
-    }
-}
-
-impl Drop for Condvar {
-    fn drop(&mut self) {
-        unsafe {
-            let _ = abi::sem_destroy(self.sem1);
-            let _ = abi::sem_destroy(self.sem2);
-        }
-    }
-}